Accessory seat



FIG. 1 is a front perspective view of an accessory seat showing our design;

FIG. 2 shows a top plan view of the seat of FIG. 1;

FIG. 3 shows a bottom plan view of the seat of FIG. 1;

FIG. 4 shows a front elevation view of the seat of FIG. 1;

FIG. 5 shows a side elevation view of the seat of FIG. 1, the other side elevation view being identical; and

FIG. 6 shows a rear elevation view of the seat of FIG. 1. 

The ornamental design for an accessory seat, as shown and described. 